shithub: 9intro

ref: a351bcdccdf5a4273bc8dc3360a48fbb8b8aa9ea
dir: /src/pipe.c/

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#include <u.h>
#include <libc.h>

void
main(int, char*[])
{
	int	fd[2];
	char	buf[128];
	int	nr;

	if (pipe(fd) < 0)
		sysfatal("can't create a pipe: %r");
	write(fd[1], "Hello!\n", 7);
	nr = read(fd[0], buf, sizeof(buf));
	write(1, buf, nr);
	exits(nil);
}